Seal assembly



FIG. 1 is a front perspective view of a seal assembly;

FIG. 2 is a top view of the seal assembly, the bottom view being a mirror image thereof;

FIG. 3 is a front elevation view of the seal assembly, the rear view being a mirror image thereof; and,

FIG. 4 is right side elevation view of the seal assembly, the left side being a mirror image thereof.

The broken lines in FIGS. 1 through 4 form no part of the claimed design. 

CLAIM The ornamental design for a seal assembly, as shown and described. 